Stovepipe.



PATENTED JULY 30, 1901.

J. MOGHIB & B. BLUOD.

\a" of M Le al INV NTORS Jar-m 06m:

BURR 51.000 BY ATTORNEYS TI QE mmms PETERS cm, WASHINGTON, n. c.

UNITED STATES PATENT OFFICE.

JOHN McGHIE AND BURR BLOOD, OF SPOKANE, WASHINGTON, ASSIGNORS TO SAFETYMANUFACTURING COMPANY, OF WASHINGTON.

SPOKANE, WASHINGTON, A CORPORATION OF STOVE PIPE Specification ofLetters Patent.

Patented July 30, 1907.

To all whom it may concern:

Be it known that we, JonN MoGnIE and B URR BLOOD, citizens of the UnitedStates, and residents of Spokane,

in the county oi Spokane and State of Washington,

have invented certain new and useful Improvements in Stovepipes andother Pipes Used [or Conducting Smoke or Hot or Bad Air, of which thefollowing is a specification.

This invention is an improvement in stove and other pipe-joints and hasfor an object to provide a simple construction which can be easily-madeand which will effectually and safely couple the pipe sections so theymay be conveniently detached when desired; and the invention consists incertain novel constructions and combinations of parts as will behereinafter described and claimed.

In the drawing Figure 1 is a side elevation of the pipe sectic nsprovided with my improvements with the sections detached, and Fig. 2 isa side elevation showing the sections connected, a portion cf thetongue-bearing section being broken away.

In carrying out the invention we form the meeting ends oi the pipesectisns A with projecting beads B on one of the sections and withprojecting hook-like tongues C en the other section. The beads B arepressed outwardly from the inner side of the section A at a pointsullicicntly back from the end oi the pipe to secure the desired lap ofthe sections when fitted together, and these beads 13 extend in adirection at a rightangle to the axis of the pipe section and arerounded and unobstructed at both ends so the tongue 0 may be adjustedinto engagement with the beads from either end oi the latter. \Ve alsospace the beads B apartsuiliciently to permit the fitting oi the tonguesG between them in connecting and disconnecting the sections, as will bemore fully described hereinafter. The tongues 0 project from the extremeend of the pipe section A and are spaced apart sufficiently to receivebetween them the beads B in fitting the sections together, and thesetongues C are curved in cross-section, as best shown in Fig. 2 intoapproximately a hook-like lorm coinciding with the cross sectional formof the beads 13 so the tongue 0 will receive the said beads when theparts are fitted together, as shown in Fig. 2.

The tongues and beads are stamped from their respective pipe sectionsand are so formed and arranged that when the sections are fittedtogether with the tongues 0 between the beads B, a quarter turn of oneof the sections will adjust the tongues and beads into interlockingengagement, .thus locking the sections together and avoiding the use ofrivets or the like. The tongues C are alike at both ends, and, like thebeads B, they extend at a right angle to the axis oi the pipe sectionsso that in fitting the sections together the tongues may be slipped ontheir respective beads from either end of the latter, as will beunderstood i'rom the drawing.

It will be understood that in practice the sections may be made with thetongues G at one end and the beads B at the other end for convenience infitting the sections together as shown in Fig. 2.

\Ve claim 1. The improvement in stove and other pipe joints here indescribed, comprising the sections provided at their meeting ends onewith beads projecting outwardly from its sides and extending on lines ata right-angle to the axis of the pipe and made approximately alike atboth ends, and the other section having at its extremity tonguesprojecting beyond its ends and bent in hook form and made approximatelyalike at both ends and open at both such ends and adapted to fit overthe beads of the meeting section, the beads and the tongues being spacedapart rela- Lively whereby the tongues may fit between the beads inconnecting; and disconnecting the sections by rotating; the samerelatively, substantially as set forth.

2. The combination of the stove pipe sections, one of which is providedwith beads projecting outwardly from its side and extendingapproximately at a right angle to the axis of the pipe section, and theother section having; hoeklike tongues to engage the heads the hook-liketongues being at the ends of their respective section whereby themeeting section when inserted at its end in the section having thetongues will be stopped by the abutment of its beads against the end ofsaid first section in position for the beads to engage with thehoolelike tongues of the first section, substantially as set forth.

The improvement in stove pipes herein described com prising a sectionprovided at its extremity with hook-like tongues projecting beyond suchextremity of said section and spaced apart and opening in acircumferential direction towards the intervening space, and a secondsection provided at a point back from its extremity with outwardlyprojecting beads adapted to pass into the spaces between the tongues ofthe first section and to be then turned rotarily into locking engagementwith such tongues, said beads being arranged to abut the end of thefirstsection betweenits hoolelike tongues and form stops to limit thetelescoping of the sections to a position in which the beads orprojections may be adjusted by 'a rotary movement of said second sectioninto engagement with the hooklike tongues.

JOHN MCGHIE. BURR BLOOD. Witnesses:

JOHN H. ROCHE, EMMA DANGS.

